I guess this thread would be considered semi off-topic. I've seen threads asking about chroma keying supplies, lighting supplies, someone may have once asked where the heck do you get a clapboard? Well, this site may be what you're looking for.
http://www.studiodepot.com/store/index.cgi?cmd=site_map
A small sample of what you can find, includes Chroma Key Fabrics, spray on paints for chroma keying, chroma keying tapes, yes, even clapboards and fog machines and of course lighting and other "professional" goodies you won't find at Walmart or Best Buy or for that matter many places. So now you got a place that has all that stuff. Even those hard to find Rosco filters I mentioned in one of my tutorials.
http://www.studiodepot.com/store/index.cgi?cmd=site_map
A small sample of what you can find, includes Chroma Key Fabrics, spray on paints for chroma keying, chroma keying tapes, yes, even clapboards and fog machines and of course lighting and other "professional" goodies you won't find at Walmart or Best Buy or for that matter many places. So now you got a place that has all that stuff. Even those hard to find Rosco filters I mentioned in one of my tutorials.